Remove Background from 3 Images

I need the backgrounds removing from 3 stock images. The images are of people - 2 are on a white background and 1 has a house behind the person. Once you have removed the backgrounds, I then need you to crop the heads from the images and provide these in colour and black and white. So the end result will be as follows: 3 x images with transparent backgrounds 3 x cropped head shots in colour 3 x cropped head shots in black and white This shouldn't take any more than 1 hour, so am looking for somebody that can get started on this straight away.